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Medical Terminology CORE RS 11. READ Basic Elements of a Medical Word 1. Word Root 2. Combining Form 3. Suffix 4. Prefix These four parts of a word are.

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Presentation on theme: "Medical Terminology CORE RS 11. READ Basic Elements of a Medical Word 1. Word Root 2. Combining Form 3. Suffix 4. Prefix These four parts of a word are."— Presentation transcript:

1 Medical Terminology CORE RS 11

2 READ

3 Basic Elements of a Medical Word 1. Word Root 2. Combining Form 3. Suffix 4. Prefix These four parts of a word are known as ELEMENTS.

4 Word Root Main part or foundation of a word. All words have at least one word root. A word root may be used alone or combined with other elements to form a complete word. IE: SPEAK (word root) + ER (suffix) = SPEAKER (complete word)

5 The word root usually refers to a body part. Some root words are derived from the Latin or Greek language.

6 Word Root Examples “dent” means tooth “dermat” means skin “cardi” means heart “gastr” means stomach “pancreat” means pancreas

7 Combining Forms Correct pronunciation of medical words is important. In order to make the pronunciation of word roots easier, sometimes it is necessary to insert a vowel after the root. The combination of a word root and a vowel is known as a COMBINING FORM.

8 Combining forms consist of a combining vowel. The combining vowel is usually an “o”, but others may be used. IE: gastr / o pronounced GASTRO. Word root Combining vowel

9 When a word has more than one root, a combining vowel is used to link the root to each other. IE: osteoarthritis oste/ o / arthr/ itis Word root Combining vowel Word root suffix Slashes separate elements

10 Word-Building System By understanding the meanings of word roots, one can determine the meaning of complex medical terms by putting together the smaller parts.

11 Leukocytopenia Prefix: Leuk / (white) Word Root: cyt / (cell) Combining Vowel / o / Suffix: / penia (decrease)

12 Suffixes A suffix is added to the END of a word root or combining form to modify its meaning. By adding a suffix to the end of a word root, we create a noun or adjective with a different meaning.

13 A combining vowel is used between a word root and a suffix that begins with a consonant (not a vowel). This is to make pronunciation easier. scler / (hardening) Word root: derma (skin) Term: Scler / o / derma (hardening of the skin) Combining vowel

14 Meanings of certain suffixes -al pertaining to dent/al (pertaining to teeth) -er one who speak/er (one who speaks) -able capable of being playable (capable of being played)

15 -oma (tumor) hematoma (blood tumor) NOTE: The element that comes before a suffix can either be a word root or combining form.

16 The suffixes -scope (instrument to view) -rrhexis (rupture) -rrhea (flow or discharge) all begin with a consonant, therefore a combining vowel must be used between the word root and the suffix.

17 The suffixes -algia (pain) -edema (swelling) -uria (urine, urination) These suffixes begin with a vowel, therefore a combining vowel is NOT used between the word root and the suffix.

18 REVIEW A combining vowel IS used to link one root to another root, and before a suffix that begins with a consonant. A combining vowel IS NOT used before a suffix that begins with a vowel.

19 Prefixes A prefix is a syllable or syllables placed BEFORE a word or word root to alter its meaning or create a new word. Some prefixes: Hyper- (excessive) Pre- (before) Post- (after) Homo- (same) Hypo- (under)

20 Hypoinsulinemia Hypo / insulin / emia Prefix Word root suffix LOW INSULIN BLOOD Notice that there is no combining vowel in this word because the prefix ends with a vowel and the suffix begins with a vowel.

21 Plurality To make a medical word plural (more than one), first look at the suffix. Then, choose the rule that changes the singular form to the plural form.

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23 Click sobre el enlace para contestar los tests. archive/wa_medical_terms/default.htm archive/wa_medical_terms/default.htm


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